Electronics Forum | Mon Apr 09 20:55:46 EDT 2012 | action_101
I forgot to add that we are using a 3 mil stencil. It seems like to me that may be there isn't enough flux left when we reach liquidous?? About half of the solder spheres do melt and wet on each pad, but the top half of each solder joint is just the
Electronics Forum | Mon Apr 09 21:09:29 EDT 2012 | isd_jwendell
I haven't worked with anything as small as 01005s, but something you didn't mention is the %metal of your paste. I just switch from 90% to 89.5% (AIM NC257-2) and could tell the difference. Just an idea...
Electronics Forum | Mon Apr 09 21:20:59 EDT 2012 | action_101
Interesting thought. Our paste is 89.2% according to the data sheet I have, but it still might be worth trying the 84-86% syringe blend. Thanks for the suggestion.
Electronics Forum | Fri Apr 13 12:31:23 EDT 2012 | markhoch
*Like* (There should be a way to "Like" or "Dislike" replies so that other Engineers can agree or disagree with a response. Doens't this sound like a good idea?)
Electronics Forum | Fri Apr 13 16:52:07 EDT 2012 | hegemon
Hey Frazzled, you mean you don't prefer the back and forth flaming wars when someone disagrees with an opinion? How about "Agree" & "Disagree" for starters. Later we can add "YGTBK"(you got to be kidding), and "WP" (Wrong Planet) Great idea Frazz
Electronics Forum | Mon Apr 16 18:53:14 EDT 2012 | action_101
What is that garbage. How about you add flamer to like and dislike. I would have used it at least 3 times in this thread alone.
Electronics Forum | Wed May 03 20:24:22 EDT 2000 | Dave F
MF: I know of nothing that addresses your question directly. Let me suggest: * Technical types at your solder supplier should be able to help. * "Effect Of Intermetallic Compounds On The Thermal Fatigue Of Surface Mount Solder Joints" PL Tu, et a
Electronics Forum | Mon Apr 09 19:50:33 EDT 2012 | action_101
Hello, We're building some boards with 01005's and the only issue we are running into is the solder is not reflowing. It's the damnest thing, we are having no issues with the printing process or placing the components, the two areas we thought we wo
Electronics Forum | Tue Aug 22 14:59:55 EDT 2000 | Mike Naddra
What does the reflow profile look like , the question I had was surrounding the higher reflow temperature and the max temperature that lowest thermal mass components will see. Some other questions that I had were surrounding the components , what of
Electronics Forum | Thu Aug 12 00:02:29 EDT 1999 | dean
| We currently have 32 LEDs per board and are looking to change the LED from a gull wing package to another package. (possibly a chip type package). I have heard that some cases and LEDs do not like reflow. This part is not cost effective to have to
